Design of geometrical parameters and kinematical characteristics of a non-circular gear transmission for given parameters

S Maláková, M Urbanský, G Fedorko, V Molnár… - Applied Sciences, 2021 - mdpi.com
In this paper, the authors present the design of a suitable gear transmission with the
continuously changing gear ratio in the range from 0.5 through 1.0 to 2.0 and back during …

Synthesis of indexing mechanisms with non-circular gears

F Zheng, L Hua, X Han, B Li, D Chen - Mechanism and Machine Theory, 2016 - Elsevier
Indexing mechanism is one of the most important mechanisms in automated machineries.
Various kinds of indexing mechanisms have found existence in application, including cam …

Linkage model and manufacturing process of sha** non-circular gears

F Zheng, L Hua, X Han, B Li, D Chen - Mechanism and Machine Theory, 2016 - Elsevier
Current research of non-circular gear processing mainly focuses on gear hobbing. However,
this method has many limitations including being unable to process internal gears or non …

Computational fluid dynamics analysis of flowmeters with elliptical gear pairs and evaluation of calculated flow rate by Taguchi method

İ Pazarkaya, M Yazar, A Özdemir - Flow Measurement and Instrumentation, 2023 - Elsevier
Accurate determination of flowmeters' design and manufacturing parameters ensures that
commercially available flowmeters' declared characteristics are reliable. In this study, nine …

The generation principle and mathematical models of a novel cosine gear drive

S Luo, Y Wu, J Wang - Mechanism and Machine Theory, 2008 - Elsevier
A novel cosine gear drive is presented in this paper. The pinion of the drive utilizes a cosine
curve as the tooth profile. It takes the zero line of the cosine curve as the pitch circle, a period …

A landmark in the history of non-circular gears design: The mechanical masterpiece of Dondi's astrarium

M Addomine, G Figliolini, E Pennestrì - Mechanism and Machine Theory, 2018 - Elsevier
The paper focuses on the contribution of the Italian clockmaker Giovanni Dondi (1330–
1388). He authored the manuscript Tractatus Astrarii documenting, with text and drawings …

Design and manufacture of new type of non-circular cylindrical gear generated by face-milling method

F Zheng, H **nghui, L Hua, M Zhang - Mechanism and Machine Theory, 2018 - Elsevier
Face-milling cutting method, widely used in the generation of spiral bevel gear, can also be
applied to cylindrical gear fabrication. This paper, generalizing the method to non-circular …

The mathematical model and mechanical properties of variable center distance gears based on screw theory

F Zheng, L Hua, X Han - Mechanism and Machine Theory, 2016 - Elsevier
Currently, researches on planar gears (including cylindrical gear, noncircular gear) are
primarily concerned with those of fixed center distance, that is, the center distance between …

Dynamics analysis of noncircular planetary gears

S Mo, Y Li, Y Liu, Y Zhou, X Zhao, J Zhang… - … in Nonlinear Science …, 2024 - Elsevier
Noncircular planetary gear has simple structure and wide application, but its dynamics
research is still blank. Therefore, this paper designs and establishes a 3–4 noncircular …

[HTML][HTML] Experimental kinematic analysis of an intermittent motion planetary mechanism with elliptical gears

A Prikhodko - Journal of measurements in engineering, 2020 - extrica.com
Intermittent motion mechanisms are widely used in semiautomatic and automatic machinery.
Currently, the most common are mechanisms with a one-way coupling or mechanisms of …